Struct Symbol 

pub struct Symbol(/* private fields */);

A reference to a function by name: a call target, or a function whose address an instruction takes. Resolved by name at emission.

Examples

use backend_lang::mir::Function;
use backend_lang::x86_64::SYSV;

let mut f = Function::new("f", &SYSV);
let s = f.symbol("helper")?;
assert_eq!(f.symbol_name(s), Some("helper"));

Implementations

impl Symbol

pub const fn new(index: u32) -> Symbol

The id with index index. Whether a function has it is checked where it is used.

Examples

use backend_lang::mir::Symbol;

assert_eq!(Symbol::new(3).index(), 3);

pub const fn index(self) -> usize

The id’s index.

Examples

use backend_lang::mir::Function;
use backend_lang::x86_64::SYSV;
let mut f = Function::new("f", &SYSV);
assert_eq!(f.symbol("g")?.index(), 0);

Trait Implementations

impl Clone for Symbol

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Symbol

impl Debug for Symbol

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Symbol

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Symbol

impl From<Symbol> for Operand

fn from(s: Symbol) -> Operand

Converts to this type from the input type.

impl Hash for Symbol

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Symbol

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Symbol

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for Symbol

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Symbol